The 5SL4401-8CC is a 4-pole miniature circuit breaker from Siemens' 5SL4 Basic Devices family, rated 1 A with a D-curve trip characteristic at 400 V and a 10 kA breaking capacity.
Deployment context
Snap-on DIN rail mounting for standard 35 mm rail in panel or enclosure. The 4-pole form factor occupies four modular width units (4 MW) on the rail. The D-curve and 1 A rating suit it for protecting a single motor feeder or a control transformer secondary where the inrush exceeds 10× rated current for a few cycles.
